Myself and six other also saw these three lights moving together in the same configuration in the pictures on the link. Nothing creepie. There are many satellites that move in pairs or other multiples. These are gathering info in 3D from 3 different positions simultaneously. They can be for various uses: geographic, geologic, meteorlogical, military.
It was about 10pm when we saw them from Katoomba, 100km west from Sydney during a dark site observing session back in February. The cool thing was that they disappear into Earth's shadow one at a time, nearly dead overhead, as they orbited.
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